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In this photo released by Virgin Galactic, the Virgin Galactic SpaceShipTwo, VSS Enterprise, glides toward the earth on its first test flight after release from the mothership, WhiteKnight2, over the Mojave, Calif., area early Sunday, Oct. 10, 2010. SpaceShipTwo is undergoing rigorous testing before it can carry tourists to space. In the latest test, SpaceShipTwo did not fire its rocket engine to climb to space. The craft was piloted by engineer and test pilot Pete Siebold from Scaled Composites. (AP Photo/Clay Observatory for Virgina Galactic, Mark Greenberg) NO SALES
/ AP